Pulse width modulation dc motor speed control
Pulse-operated electrical motor safety circuits
Pulse-width modulated ac motor drive
Pulsed capacitor discharge electric engine
Pulseur a taux d'ouverture optimum
Pump stroke rate and motor control
Pumping apparatus
Pumping-up generator/motor system and method of operation of...
Pwm system for ecm motor
Quadrature axis field brushless exciter
Quantized speed control of a stepper motor
Quick set electric motor brake control
Railway switch machine motor control apparatus
Rapid deexcitation system for synchronous machines with...
Rapid power response turbine
Reciprocating actuator with closed loop servocontrol
Recording and reproducing system
Regenerative brake control circuit
Regenerative brake control system for dc motor
Regenerative brake control system for dc motor